UTEP forced a 3-and-out on ACU’s next possession when Taelyn Williams dropped a long third-down pass from Mansell in Miner territory.
The Wildcats allowed the Miners to drive to their 33-yard line with 8:57 left before burying Hardison on a huge 4th-and-1 run up the middle that went nowhere.
ACU cut the score to 17-13 on its next drive, powered by a 43-yard pass from Mansell to junior wide receiver L.J. McConnell on second down, and capped by another Zepeda field goal, this time a 39-yarder with 5:19 remaining to play.
But the Miners, whose game-winning scoring drive took nearly half a quarter off the clock in the second half, played keep-away from the Wildcats to end the game.
Senior safety Byron Robinson Jr. led ACU in tackles with seven and junior safety Brian Bullock added six. The Wildcats sacked Hardison twice.
White was the Wildcats’ leading rusher with 41 yards on 11 carries, and Dobbins added 36 on nine carries. Sophomore wide receiver Taelyn Williams had two receptions for 77 yards and McConnell had three for 44.
Abilene Christian will play the second of its three FBS opponents of the season when it travels Oct. 3 to take on Army West Point in New York. Kickoff is set for 12:30 p.m. CDT at Michie Stadium.